diff --git a/src/Directory.Packages.props b/src/Directory.Packages.props
index 131a802..959dc6e 100644
--- a/src/Directory.Packages.props
+++ b/src/Directory.Packages.props
@@ -8,7 +8,7 @@
     <PackageVersion Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
     <PackageVersion Include="OpenMcdf" Version="3.1.0" />
-    <PackageVersion Include="Polyfill" Version="9.13.0" />
+    <PackageVersion Include="Polyfill" Version="9.17.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.172" />
     <PackageVersion Include="Verify.DiffPlex" Version="3.1.2" />
     <PackageVersion Include="Verify.XunitV3" Version="31.13.2" />